The Slip-Lok Coupling is used to connect outdoor mist cooling system lines and assembles in seconds with a simple insert and twist motion. The unique brass Slip-Lok design can be used with both low and high pressure (up to 160 psi) systems as the coupling grips tighter when the pressure increases. Additionally, the coupling and tubing can be disassembled by simply compressing the ferule against the body and pulling away from the tubing, making the Slip-Lok coupling a versatile mist system fitting.